Keto sounds simple. Cut carbs. Let your body burn fat. But somewhere along the way, things got complicated. 

Now we have “keto bars,”low-carb snacks,” and “sugar-free treats” filling the shelves. They look like they should help, right? The packaging even promises, “Keto friendly.” But if you take a closer look at the ingredient list, you’ll often find a very different story. 

Let’s break down some of the most common junk ingredients that sneak into these foods and expose the junk in low-carb foods.

First up: maltodextrine

We’ve talked about this one before, and for good reason. It’s a big one, especially concerning for people with blood sugar issues.

Maltodextrine is often used as a filler or thickener, especially in powdered products and seasonings. Some popular supplement brands even include it in electrolyte products without clearly disclosing it. 

Here’s the problem: maltodextrine acts very much like sugar in the body. It can spike blood glucose quickly—sometimes even faster than table sugar. So even if the label swears “low-carb,” this ingredient can work directly against your goals. 

Next: artificial sweeteners

Products containing artificial sweeteners like aspartame or sucralose are marketed as “zero sugar,” which sounds perfect for Keto. But zero sugar doesn’t always mean zero impact. 

These sweeteners can still trigger insulin responses in some people. More commonly, they increase hunger and cravings, making it harder to stay consistent on your Keto diet. There’s also a growing mix of research and real-world experience suggesting these sweeteners may have negative effects on health over time. 

And here’s something worth thinking about: many people switch to Keto to break their dependence on sugar. But constantly consuming sweet-tasting foods—even without sugar—can keep that cycle going. It works against the very habit you’re trying to change. 

Fibre tricks 

Ingredients like soluble corn fibre and isomalto-oligosaccharides (IMO) are often used to lower the “net carbs” on labels. You’ll find them in many keto bars and packaged snacks. 

On paper, they look great. In reality, they don’t always behave like the true fibre.

Some people still experience blood sugar spikes. Others deal with bloating, gas, or digestive discomfort. These ingredients may help the label look better, but they don’t always help your body. 

Protein isolates

Soy protein isolate, pea protein isolate, and wheat protein isolate are all common in “keto friendly” products. They sound healthy, but they’re highly processed forms of protein. 

For some people, they can be hard to digest or even inflammatory. Don’t be fooled, they are not the same as eating real, whole protein like meat or eggs. 

Your body recognises the difference. 

Seed oils—especially soybean oil

This one is everywhere, not just in Keto products. 

It’s inexpensive, highly processed, and widely used in packaged products. But it’s also something many people try to limit, especially when focusing on metabolic health and inflammation. 

We have an entire article about the dangers of seed oils. 

And finally: natural flavours 

This might be the most misleading ingredient of all. 

“Natural flavours” is a catch-all term that can include a wide range of substances. Companies are not required to disclose exactly what these mixtures contain. 

So while it sounds harmless, it often lacks transparency. And when it comes to your health, that matters. 

So what should you do instead?

If this feels overwhelming, don’t worry. The solution is actually simple. 

Focus on real food. 

Whole foods, like meats, eggs, low-carb vegetables, and some fruits or berries don’t need long ingredient lists. What you see is what you get. 

That doesn’t mean you can never have packaged Keto products. But if your goal is weight loss or better metabolic health, those foods should be occasional, not the foundation of your diet.

Keep it simple 

Keto doesn’t need bars, shakes, or processed snacks to work. 

In fact, the more you rely on real, whole foods, the easier everything becomes. Hunger is easier to manage. Cravings tend to settle down. And most importantly, you feel better, without all the junk in low-carb foods.